[Qemu-devel] [PATCH] block.c: fix real cdrom detection

[Programmingkid]

Fix real cdrom detection so that a real cdrom can actually be used.

signed-off-by: John Arbuckle <programmingk...@gmail.com>

This patch has been tested on Mac OS X host and guest. 
Command used: qemu-system-ppc -cdrom /dev/cdrom

Note: I was able to view the files using OpenBIOS, but not on 
Mac OS X. The size of the disc is reported correctly but some
error happens that prevents it from mounting in Mac OS X. This
is probably another bug with QEMU.

---
 block.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/block.c b/block.c
index dd4f58d..75ccfad 100644
--- a/block.c
+++ b/block.c
@@ -583,7 +583,8 @@ static int find_image_format(BlockDriverState *bs, const 
char *filename,
     int ret = 0;
 
     /* Return the raw BlockDriver * to scsi-generic devices or empty drives */
-    if (bs->sg || !bdrv_is_inserted(bs) || bdrv_getlength(bs) == 0) {
+    if (bs->sg || !bdrv_is_inserted(bs) || bdrv_getlength(bs) == 0 
+               || strcmp("/dev/cdrom", filename) == 0) {
         *pdrv = &bdrv_raw;
         return ret;
     }
-- 
1.7.5.4